我正在使用jFeed来解析RSS提要,但我现在在想如何跟踪基于间隔的检查的更改。如何有效地检查Feed中是否有新项目与之前的加载相比?不幸的是,我不能使用RSS 2.0最后更新的参数,因为它不存在。
答案 0 :(得分:1)
修正了它!请参阅以下解决方案:
//namespace for vars
$.feedentries = {
lastKnownEntry : ""
};
jQuery.getFeed({
url: 'proxy.php?url='+encodeURIComponent(url),
success: function(data) {
//if new iterate through it until we've found the last know entry
if(data.items[0].title!==$.feedentries.lastKnownEntry){
var entries = "";
$.each(data.items, function(i, feed) {
if(feed.title!==$.feedentries.lastKnownEntry){
entries += '<div class="rss-entry">'+feed.title+'<div class="time"><a href="'+feed.link+'">'+feed.updated+"</a></div></div>\n";
//remove last element, prevents from overflowing
$(id+" .rss-entry:last-child").remove();
} else {
//stop once we reach last known entry
return false;
}
});
//insert into DOM
$(id).prepend(entries);
//write new last known rss title
$.feedentries.lastKnownEntry = data.items[0].title;
}
}
});